Analysis

  • max time kernel
    117s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-01-2025 09:29

General

  • Target

    a5ed4f33453e619f40844eee07ee9760bfd76bc90a82aaf533023f44e6aef75a.exe

  • Size

    204KB

  • MD5

    b6775b64a0c702861e2c9e65783e2ec9

  • SHA1

    b5c861af61fe6aa5036ecfcb46bbe5cde02164c8

  • SHA256

    a5ed4f33453e619f40844eee07ee9760bfd76bc90a82aaf533023f44e6aef75a

  • SHA512

    27ea72bb4e4095a6cee1c9d54c98e6a8ab436600464cc150fb50b6a1099cb094c391d3e055b35e4439990d40b5ad0f320d079df152f5a35e6c9315f357f64e22

  • SSDEEP

    3072:h5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlA4:hLexkuRaX41xoyJV65gzyZko+uc5

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5ed4f33453e619f40844eee07ee9760bfd76bc90a82aaf533023f44e6aef75a.exe
    "C:\Users\Admin\AppData\Local\Temp\a5ed4f33453e619f40844eee07ee9760bfd76bc90a82aaf533023f44e6aef75a.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    2ab2790c6690e2112e829a406b3d9648

    SHA1

    6eb855a659832ad3aea17b8f08515ff6ca390e07

    SHA256

    df9cb02dbe31f78aab5cc4cc402057b8c017008335bb306cd0ba628f1e9ff300

    SHA512

    0df4eb2e118006cb6def33dd94ee8e3a445d5a6e1c8b847065803021e31b9bf6b171911ee3f13251f210b22002c8ce259502e9d77f1eb1482743ae50607d6312

  • memory/2424-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2424-1-0x0000000000230000-0x0000000000281000-memory.dmp

    Filesize

    324KB

  • memory/2424-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2424-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2424-19-0x0000000000230000-0x0000000000281000-memory.dmp

    Filesize

    324KB

  • memory/2424-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2504-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2504-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2504-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2504-22-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-32-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-30-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2504-28-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-26-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-24-0x0000000001F30000-0x0000000001FD8000-memory.dmp

    Filesize

    672KB

  • memory/2504-34-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-36-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-38-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-42-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-56-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-84-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-82-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-81-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-80-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-79-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-78-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-77-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-76-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-75-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-74-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-73-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-72-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-71-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-70-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-69-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-68-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-67-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-66-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-65-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-64-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-63-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-62-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-60-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-59-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-58-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-57-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-55-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-54-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-53-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-52-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-51-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-50-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-49-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-48-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-47-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-46-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-45-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-83-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-44-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-43-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-41-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-61-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB

  • memory/2504-40-0x0000000002510000-0x00000000025C6000-memory.dmp

    Filesize

    728KB